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authorSong Liu <song@kernel.org>2021-04-26 00:43:32 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2021-04-29 16:30:58 +0300
commit01bd8efcec444468db0275bbd71b49927f7e1544 (patch)
treeb31081a17badba1492cac6b7ff8ec33a0a595c58 /tools/perf/util/bpf_counter.c
parent112cb56164bc2108a55aee785d841a35aab0616a (diff)
downloadlinux-01bd8efcec444468db0275bbd71b49927f7e1544.tar.xz
perf stat: Introduce ':b' modifier
Introduce 'b' modifier to event parser, which means use BPF program to manage this event. This is the same as --bpf-counters option, but only applies to this event. For example, perf stat -e cycles:b,cs # use bpf for cycles, but not cs perf stat -e cycles,cs --bpf-counters # use bpf for both cycles and cs Suggested-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Song Liu <song@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Song Liu <songliubraving@fb.com> Link: https://lore.kernel.org/r/20210425214333.1090950-5-song@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/bpf_counter.c')
-rw-r--r--tools/perf/util/bpf_counter.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/util/bpf_counter.c b/tools/perf/util/bpf_counter.c
index 33b1888103df..f179f5743025 100644
--- a/tools/perf/util/bpf_counter.c
+++ b/tools/perf/util/bpf_counter.c
@@ -790,7 +790,7 @@ int bpf_counter__load(struct evsel *evsel, struct target *target)
{
if (target->bpf_str)
evsel->bpf_counter_ops = &bpf_program_profiler_ops;
- else if (target->use_bpf ||
+ else if (target->use_bpf || evsel->bpf_counter ||
evsel__match_bpf_counter_events(evsel->name))
evsel->bpf_counter_ops = &bperf_ops;